Where does “trillion” come from?

Trillion comes from French trillion, from French -illion, ultimately from French billion, derived from the prefix bi- meaning two.

trillion (English): A million million: 1 followed by twelve zeros,...

Definitions

  1. A million million: 1 followed by twelve zeros,...

Ancestry of “trillion”, step by step

StepLanguageWordMeaning
1Frenchtrillion10; a long scale trillion; a short scale...
2French-illionillion
3Frenchmillionmillion, 10
4Middle Frenchmillionmillion, 10
5Old Frenchmillon
6Italianmilionemillion
7Italianmillethousand
8LatinMīllethousand; 1000
9Proto-Italicsmīɣeslīthousand
10Proto-Indo-Europeansmih₂ǵʰéslih₂

Words derived from “trillion

Every word from Proto-Indo-European smih₂ǵʰéslih₂
trillion — Etymology, Origin & Word History | Etymology Explorer